6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the odd man out?

61, 66, 83, 121, 185

A) 185	B) 121
C) 83	D) 66

Answer & Explanation Answer: B) 121

Explanation:

Given number series is 61, 66, 83, 121, 185

Here the given series follows a pattern that,

$61 61 + (2^{2} + 1) = 66 66 + (4^{2} + 1) = 83 83 + (6^{2} + 1) = 120 (not 121) 120 + (8^{2} + 1) = 185$

Hence, the odd man in the given series is 121.

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3 50284

Q:

L.C.M of two prime numbers x and y (x>y) is 161. The value of 3y-x is :

A) -2	B) -1
C) 1	D) 2

Answer & Explanation Answer: A) -2

Explanation:

H. C. F of two prime numbers is 1. Product of numbers = 1 x 161 = 161.

Let the numbers be a and b . Then , ab= 161.

Now, co-primes with product 161 are (1, 161) and (7, 23).

Since x and y are prime numbers and x >y , we have x=23 and y=7.

Therefore, 3y-x = (3 x 7)-23 = -2

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Filed Under: HCF and LCM

119 50247

Q:

ΔABC is right angled at B. If cotA = 8/15, then what is the value of cosC ?

A) 15/8	B) 8/17
C) 17/15	D) 15/17

Answer & Explanation Answer: D) 15/17

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 50120

Q:

If $y = 1^{3} + 2^{3} + 3^{3} + 4^{3} + 5^{3} + 6^{3}$ then find the value of y - 1.

A) 429	B) 439
C) 440	D) 441

Answer & Explanation Answer: C) 440

Explanation:

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0 50109

Q:

If Sinx = 4/5, then $1 + {Tan}^{2} x =$

A) 9/25	B) 25/16
C) 4/25	D) 25/9

Answer & Explanation Answer: D) 25/9

Explanation:

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Exam Prep: Bank Exams

1 50033

Q:

Solve the following

$78 \div [- 4 + (- 3) of \{27 \div (- 18 \div - 2)\}]$

A) -6	B) 13
C) 6	D) 15.6

Answer & Explanation Answer: A) -6

Explanation:

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0 49965

Q:

Correct expression of $0.0 \bar{18}$ = ?

A) 1/55	B) 18/100
C) 18/1000	D) 1/66

Answer & Explanation Answer: C) 18/1000

Explanation:

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Filed Under: Simplification
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3 49953

Q:

In the following question, select the odd letter/letters from the given alternatives.

A) RMHC	B) XSNI
C) YTOJ	D) ZVQL

Quantitative Aptitude - Arithmetic Ability Questions

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